linux-kernel - Re: files/process scaling problem? (was: [PATCH] Export shmem_file_setup and shmem

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Message-ID: <21d7e9970808041520k64506cf0k14e4f8e3d5a316bd@mail.gmail.com>
Date:	Tue, 5 Aug 2008 08:20:32 +1000
From:	"Dave Airlie" <airlied@...il.com>
To:	"Ingo Oeser" <ioe-lkml@...eria.de>
Cc:	"Keith Packard" <keithp@...thp.com>,
	"Alan Cox" <alan@...rguk.ukuu.org.uk>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"John Stoffel" <john@...ffel.org>,
	"Christoph Hellwig" <hch@...radead.org>,
	"Eric Anholt" <eric@...olt.net>, linux-kernel@...r.kernel.org
Subject: Re: files/process scaling problem? (was: [PATCH] Export shmem_file_setup and shmem_getpage for DRM-GEM)

On Tue, Aug 5, 2008 at 7:46 AM, Ingo Oeser <ioe-lkml@...eria.de> wrote:
> On Monday 04 August 2008, Keith Packard wrote:
>> On Mon, 2008-08-04 at 15:11 +0100, Alan Cox wrote:
>>
>> > X libraries provide the event loop so that isn't really as complex as it
>> > seems.
>>
>> Uh, no, X doesn't. Gtk+ and Qt provide event loops that applications may
>> use, but still many choose to roll their own.
>
> Ok, how many need support for GEM? How many of them would change their
> event loop, if they can get better performance?
>

GEM is under OpenGL libs so they don't request support for GEM.
However if the underlying OpenGL implemenation
suddenly starts doing something with a lot of fds it could potentially
confuse the crap out of these exisiting applications.

Dave.
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